Melrob-Chemiplus is the merger of Melrob Japan and Chemiplus Corporation. Both companies had similar beginnings working in partnership with Japanese chemical manufacturers for specific export markets. Chemiplus was established in 1988 and Melrob Japan more recently in 2007.

Each company quickly established sales in North America, Europe, Asia and China. More recently both have focused on successfully developing sales in Japan. Their respective product portfolios are highly complimentary.